Philip Kariam Photo
Philip Kariam Photo
Philip Kariam Photo

Philip (Phil) has a broad range of experience advising clients on complex international trade and investment law matters. His international trade experience includes advising governments on World Trade Organization (WTO) litigation, government procurement, subsidies, trade facilitation, and services and technical regulations under the WTO agreements, as well as inter-provincial trade matters under the Canadian Free Trade Agreement. He has also advised clients on a variety of international investment law matters, including investor-state dispute settlement and compliance with investment obligations under international treaties. Phil also draws from his extensive international experience, including with the World Bank, where he provided legal services on issues related to climate change, pollution, and projects with trans-boundary impacts.

Phil brings a strong technical aptitude to his practice, which he developed as a civil engineer prior to setting out on a career in law. In that capacity, he has worked in the land development, steel manufacturing, and oil industries.

Representative Matters

Represented Ontario in the following public matters:

  • Tennant Energy, LLC v. Government of Canada, PCA Case No. 2018-54
  • Canada — Measures Governing the Sale of Wine (DS537)

Speaking Engagements

Energy Bar Association Conference, Cross Border Energy Disputes Among Canada, the United States and Mexico – Why Can’t Neighbors Get Along

May 11, 2023


Community Involvement

  • 2016-2017, Managing Editor, Transnational Legal Theory Journal, Toronto, Canada
  • 2016, Refugee Sponsorship Support Program, Legal Clinic

Directorships & Affiliations

  • Law Society of Ontario

Education & Admissions

Called to the Ontario bar
Master of Laws, International Business and Economic LawGeorgetown University, Washington DC, USA
Master of International AffairsInternational Public Management, Science Po, Paris, France
JDOsgoode Hall Law School
Bachelor of Applied Science, Civil EngineeringUniversity of Waterloo


  • “International Protection of Foreign Investment (Canada Chapter),” Co-author with Robert Wisner and Neil Campbell, Juris Legal Information (February 2022)

Insights (7 Posts)View More

Featured Insight

McMillan LLP’s CUSMA Dispute Settlement Scoreboard

Overview and analysis of disputes under the Canada-United States-Mexico Agreement, including bi-national panel review, ISDS, and general dispute settlement

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Jun 5, 2023
Featured Insight

Procurement in Ontario: Current State-of-Play

Potential changes to procurement in Ontario include the operationalization of Supply Ontario and "Buy Ontario" legislation.

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Mar 8, 2023
Featured Insight

As NAFTA Legacy Claims Window Closes, Canadian Businesses with Investments in Mexico Maintain Important Protections under CPTPP

Time is running out for investors to launch NAFTA legacy claims, however Canadian claimants maintain important protections against Mexico under the CPTPP.

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Mar 1, 2023
Featured Insight

Let Them Roll: Dispute Settlement Panel Rules in Favour of Canada and Mexico on Automotive Rules of Origin and “Roll-Up” Method under CUSMA

Analysis of recent CUSMA panel decision on automotive rules of origin. Use of the roll-up method for core parts was in dispute between Canada, US and Mexico.

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Jan 24, 2023
Featured Insight

Canada Poised to Increase Regulation of Forced Labour in Supply Chains

Developments in Canadian regulation of forced labour in supply chains and their potential impacts on Canadian businesses

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Jun 7, 2022
Featured Insight

Canada Expands Sanctions on Russia and Proposes Broad Legislative Changes to its Sanctions Regime

An overview of two further rounds of Canadian sanctions against Russia as well as amendments that would strengthen Canada’s sanctions regime.

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Jun 1, 2022
Featured Insight

Federal Government Launches Consultations on Remedies Against Low-Priced Imports

A review of the stakeholder engagement process for proposed amendments to the Special Import Measures Act and the Canadian International Trade Tribunal Act

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Sep 13, 2021